Rubber composition.



WILLIAM F. BEASLEY, 0F PLYMOUTH, NORTH CAROLINA.

Runner. ooivrrosrrron.

No Drawing.

To all Who-m 1m (13 concern Be it known that I, \VILLIAM F. BnAsLEr, a citizen of the United States and resident of Plymouth, in the county of \Vashington and State of North Carolina, have invented certain new and useful Improvements in Rubber Composition and Method of Manufacture, of which the following is a speci- This invention has for its object the utilization of old rubber and it has been my purpose to make from such rubber a composition which may be used for many of the purposes to which new rubber is applicable and to devise a process of treatment which will enable me to produce the composition cheaply and easily.

The novel features of the iiivention will appear from the following detailed description.

Processes have heretofore been devised for reclaiming rubber and while they have produced satisfactory articles of compositions their use has been expensive. I have discovered a way of utilizing old rubber for many purposes without subjecting it to the expensive processes above mentioned. I take scrapsor pieces of rubber, or any old rubber articles which have lost their usefulness through a' e, and divide them into particles by grin ing or cutting, and I then cement together the particles or pieces so produced while they are under pressure in any suitable mold. The pressure brings the particles into close contact so as to make a compact mass and the cement acts to hold the particles together so that the product has the appearance of ordinary rubber. It willnot have as great tensile strength as new' rubber but it will have the same elasticity and strength so far as compression is concerned and it may be used in many places where more expensive rubber would other wise be necessary. The cementing may be done in various ways and may include the use of a separate cementing material or I may subject the partic s to treatment with a cold cure solution which will act on the Specification of Letters Yatent.

Patented Dec. 31, 1912.

Application filed June 20, 1911. Serial No. 634,360.

surface of the particles and make them adhere firmly in a compact mass. When I make use of a separate cementing material the mascerated particles are coated in any suitable way with the Well-known rubber cement or with liquid rubber, and after they arethoroughl'y coated thev articles are subjected to pressure in a mo (1 so as to bring the mass into compact form and the pressure is maintained until the cementing material dries or is vulcanized. Heat may be used to assist the operation when the material is under pressure but it will be understood that this heat is not such as to revulcanize the entire mass but that it is in: tended merely to vulcanize the cementing material. The mass is also subjected to pressure when it is treated with a curing acid for the purpose of cementing it.

It will of course be understood that the particles of rubber may be dip ed in cement or its equivalent or may covered or coated in any suitable way, and it will also be understood that the mold in which the mass is compressed may be of any desired shape or construction.

The cementing composition may be made in the shape of any article desired and it may be used as a filler for vehicle tires.

ber tube or hose and may be cemented in place, th'ehose serving to hold the material during the operation, and it will be understood that the hose maybe subjected to pressure, flattening it or changing its shape.

Having thus described my invention what I claim is:

A rubber composition comprising particles or strips of appreciable size of soft'vulcanized rubber presw'd into close contact and held together b'y rubber cement v'ulcanized, while the mass is under pressure.

In testimony whereof I afiix my signature in presence of two.wit-nesses.

WILLIAM F BEASLEY.

\Vitnesses: 7

ARTHUR L. BRYANT, JOHN M. Corr. 

